Which of the following statements about the celestial sphere is not true? a) the "celestial sphere" is just another name for our universe. b) from any location on earth, we can see only half the celestial sphere at any one time. c) when we look in the sky, the stars all appear to be located on the celestial sphere. d) the earth is placed at the center of the celestial sphere. e) the celestial sphere does not exist physically.

33: i think it’s b

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.